The object in the photos was printed at 10X scale (1000% scale up in the slicer) because of the small size of the parts. Dimensions, material quantity and print time are for this size. Print the objects separately or in groups of like material/color. Most parts should be printed as pre-oriented with support and no brim. Print the exhaust mufflers standing up without support and with brim if necessary. The split versions of the legs and neck are easier to print on an FDM machine. Assemble the parts using the appropriate glue. The model in the photos was painted with gloss acrylic paints prior to final assembly.